From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: Glauber Costa <glommer@parallels.com>, netdev@vger.kernel.org
Cc: David Miller <davem@davemloft.net>,
Andrew Morton <akpm@linux-foundation.org>,
kamezawa.hiroyu@jp.fujitsu.com
Subject: [BUGFIX][PATCH 0/3] memcg: tcp memcontrol fixes.
Date: Thu, 29 Mar 2012 16:01:11 +0900 [thread overview]
Message-ID: <4F7408B7.9090706@jp.fujitsu.com> (raw)
I'm very sorry if you received this e-mail twice.
==
This series is 3 bugfixes for memcg's kmem.tcp memory controller.
Maybe this should go via network tree.
(CC akpm for noticing an ugly change in res_counter.)
All patches are generated onto today linus's git tree.
Brief description:
Patch 1/3 .... tcp memcontrol doesn't see memcg's use_hierarchy value. Fix it.
Patch 2/3 and 3/3 ....
Because tcp memcontrol doesn't do any accounting when limit=RESOUCE_MAX,
there will be account leakage when limit is changed. This can trigger
WARN_ON() in res_counter which checks usage >= 0.
Patch 2/3 .... don't call static_key_slow_dec(&memcg_socket_limit_enabled) until
a cgroup under accounted is destroyed.
Patch 3/3 .... add res_counter_uncharge_nowarn() to ignore leakage.
Thanks,
-Kame
next reply other threads:[~2012-03-29 7:02 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-29 7:01 KAMEZAWA Hiroyuki [this message]
2012-03-29 7:03 ` [PATCH 1/3] [BUGFIX] memcg/tcp : fix to see use_hierarchy in tcp memcontrol cgroup KAMEZAWA Hiroyuki
2012-03-29 9:14 ` Glauber Costa
2012-03-29 9:16 ` KAMEZAWA Hiroyuki
2012-03-29 7:07 ` [BUGFIX][PATCH 2/3] memcg/tcp: remove static_branch_slow_dec() at changing limit KAMEZAWA Hiroyuki
2012-03-29 10:58 ` Glauber Costa
2012-03-29 23:51 ` KAMEZAWA Hiroyuki
2012-03-30 6:18 ` Glauber Costa
2012-03-29 7:10 ` [BUGFIX][PATCH 3/3] memcg/tcp: ignore tcp usage before accounting started KAMEZAWA Hiroyuki
2012-03-29 9:21 ` Glauber Costa
2012-03-30 1:44 ` [PATCH] memcg/tcp: fix warning caused b res->usage go to negative KAMEZAWA Hiroyuki
2012-04-06 15:49 ` Glauber Costa
2012-04-10 2:37 ` KAMEZAWA Hiroyuki
2012-04-10 2:51 ` Glauber Costa
2012-04-10 3:01 ` Glauber Costa
2012-04-10 4:15 ` KAMEZAWA Hiroyuki
2012-04-11 2:22 ` Glauber Costa
2012-04-10 3:21 ` KAMEZAWA Hiroyuki
2012-04-13 17:33 ` Glauber Costa
2012-04-18 8:02 ` KAMEZAWA Hiroyuki
2012-04-18 16:32 ` Glauber Costa
2012-04-02 3:41 ` [BUGFIX][PATCH 3/3] memcg/tcp: ignore tcp usage before accounting started David Miller
2012-04-03 22:31 ` Glauber Costa
2012-04-09 0:58 ` KAMEZAWA Hiroyuki
2012-04-09 1:44 ` Glauber Costa
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